html,body {
  font-size: 12px;
}
@media screen and (max-width:320px) {
  html,body {
    font-size :12px!important;
  }
}
@media screen and (min-width:414px) {
  html,body {
    font-size :16px!important;
  }
}
@media screen and (min-width:768px) {
  html,body {
    font-size :18px!important;
  }
}
@media screen and (min-width:960px) {
  html,body {
    font-size :20px!important;
  }
}
